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db: Make peers unique by node_id

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We should only ever have a single entry for each node_id, enforcing
this on the DB.
This commit is contained in:
Christian Decker
2017-08-14 16:04:11 +02:00
committed by Rusty Russell
parent 4bc0750882
commit 1a94e7282b
4 changed files with 42 additions and 2 deletions
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7
lightningd/peer_control.c
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@@ -540,7 +540,7 @@ static struct wallet_channel *peer_channel_new(struct wallet *w,
struct wallet_channel *wc = tal(peer, struct wallet_channel);
wc->peer = peer;
/* TODO(cdecker) See if we already stored this peer in the DB and load if yes */
wallet_peer_by_nodeid(w, &peer->id, peer);
wc->id = 0;
if (!wallet_channel_save(w, wc)) {
@@ -590,6 +590,11 @@ void add_peer(struct lightningd *ld, u64 unique_id,
peer->htlcs = tal_arr(peer, struct htlc_stub, 0);
wallet_shachain_init(ld->wallet, &peer->their_shachain);
/* If we have the peer in the DB, this'll populate the fields,
* failure just indicates that the peer wasn't found in the
* DB */
wallet_peer_by_nodeid(ld->wallet, id, peer);
/* peer->channel gets populated as soon as we start opening a channel */
peer->channel = NULL;